NetNotes
the attic of the building provided stable power. I started out as a technician and we all wore white nylon lab coats, white rubber shoes that we washed weekly, and little white hats. Visitors suited up in lab coats with plastic bags over their shoes. Pre-pumps to evacuate the film cameras were located two floors up. We would put on our red goggles to retain our dark adaptation, put plastic bags over our plastic shoes, and shuffle up to get new film cameras . . . looked like Martians! It was an interesting time. Tere were also a couple of Japanese scientists working on an early Hitachi microscope trying to set resolution records. Tey would literally disassemble the microscope aſter just a few tries to clean it and get ready for the next attempts. Tey were the only ones with the patience to deal with that microscope. Later Perkin Elmer Company came along and helped with design changes to make it more user-friendly and thus more marketable. Pointed filaments were also made in the lab. E.F. Fullam came one time to see how they were made and then was able to start selling them commercially. Moran built a helium-cooled microscope to improve resolution using superconducting lenses. I do not know if it was originally his idea or if he “borrowed” someone else’s idea. However, they built a liquid helium recirculator system, again with most of it in the attic 4 stories up. Te helium flowed through a special jacket on the microscope that encased the entire upper part of the column through the objective lens. Tey managed to get a few images but then Moran lost interest. A series of health problems shortly thereaſter led to closing down the lab and end to a very interesting few years. Louie Ouwerkerk was a Dutch engineer who, along with the great U. of Chicago Instrument shop, designed and built a lot of Moran’s ideas. Debby Sherman dsherman@purdue. edu Wed Feb 2
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